Drilling mechanism



4 Sheets-Sheet F. W. VODOZ DRILLING MECHANISM Original Filed Dec. 28,1928 Jan. 12, 1932.

DRILLING MECHANI SM Original Filed Dec. 28, 1928 4 Sheets-Sheet 2 Jan.12, 1932. w, VODQZ 1,840,339

DRILLING rmcxmusn Original Filed Dec. 28, 1928 4 Sheets-Sheet 3 7 7621%?Fade/kl a Z6010 (liking 'Jan. 12, 1932. F. w. vonoz DRILLING MECHANISMOriginal Filed Dec. 28, 1928 4 Sheets-Sheet 4 Patented Jan. 12, 1932UNITED STATES PATENT OFFICE FREDERICK W. VOIDOZ, F WILMETTE, ILLINOIS,'ASSIGNOR TO GOODMAN MANUFACTUR- ING COMPANY, OF CHICAGO, ILLINOIS, ACORPORATION OF ILLINOIS DRILLING MECHANISM Application filed December28, 1928, Serial No. 328,901. Renewed April 3, 1931.

- ceeds.

A prior application bearing Serial Number 296,917 filed on August 2,1928, for drilling mechanisms discloses a drilling mechanism incombination with a mining machine. The drilling mechanism thereinshowiiismounted on a turret so. it may drill in the, face of the coal oratright angles thereto and is adaptable to drill holes of a large enoughdiameter to accominodate llIlllle timbers for supporting the mine roof.

My present invention shows a drilling mechanism similar to that shown inmy prior application adaptable to drill holes in a mine wall of a largediameter mounted on a turret which in turn is mounted on a turntablewhich is movable transversely of a portable truck so that a plurality ofholes may be drilled along amine face at various angles and elevationswith respect thereto or so that holes may efficiently be drilled in themine Wall at right-angles to the mine face in places where the mine wallis overhanging the mine rail or depressed therefrom as well as where the"sides of the mine wall are perpendicular to the mine bottom.

My invention may be more clearly understood with reference to thefollowing drawings, wherein 1 Figure 1 is a top plan View of thedrilling truck with parts broken away and in section to more clearlyshow the details of m invention;

Figure 2 is a side elevation of the device embodying my invention withparts broken away and in section to more clearly show the details of myinvention; and

Figures 3, 4 5 and 6 are diagrammatic views of the drllhng mechanismshowing said drilling mechanism drillingin a mine Wall under variousmining conditions.

Like numerals refer to like parts throughout the several figures.

Referring now to the details of the embodiment illustrated'in thedrawings, 10 indicates a truck comprising a main frame 11 supported onwheels 12, 12, and axles 13, 13. A turntable 1 1 is mounted on saidtruck and is movable transversely thereof. Said turntable has a motorthereon which motor has a supporting means at one end thereof forsupporting a drilling mechanism generally indicated at 16.

The turntable 14 comprises a circular plate 17 having the motor 15bolted thereon which plate is mounted on and rotatably movable on aplate 18 which plate in turn is movable transversely of the truck 10 inguides 19, 19. Guide strips 20, 20, provide a means to hold the circularplate 17 on the plate 18 and guide said plate as it is rotated on theplate 18. Cap screws 21, 21, hold the guide strips 20, 20, on the plate18. Tightening of said cap screws will tighten the guide strips 20, 20,on the plate 17 to hold said plate from movement while loosening of saidcap screws will allow said plate to rotate on the plate 18.

The guides 19, 19, comprise guide members 22, 22, fixed to angles 23,23, which angles extend transversely of the truck frame 11. A portion ofthe guide members 22, 22, overla-p a portion of the plate 18. The guidemembers 22, 22, are fixed to the angles 23, 23, by means of nuts andbolts indicated at 241, 24, so that tightening of said nuts and boltswill hold the plate 18 from transverse movement on the truck 11. whileloosening of said nuts and bolts will allow said plate to be movedtransversely of said truck.

Any suitable hand operated means may be provided to move the plate 18and'turntable 14 transversely of the truck 10, as for instance, a crowbar or any other suitable hand operated means. A bar 26 extendstransversely of the truck frame 11 and has a channel 27 thereon, theopen end of said channel fitting over the bar 26 for a portion of itsdepth. A plurality of apertures 28, 28, are provided in the channel 27so a crow bar or any other form of lever means may beinserted therein.These apertures 28 in the channel 27 form a means whereby a crow bar orany other form of lever means may obtain a grip to move the plate 18 andturntable 14 trains versely of the truck 10 thus providing a meanswhereby the drilling mechanism 16 may drill at various positions along amine Wall while the truck 10 is held in a stationary position.

The drilling mechanism 16 is supported at the rearward end of the motor15 on a turret 30. The turret 30 includes a housing member 31 whichforms an end plate for the motor 15 and base for a. turntable 33. Theturntable 33 has a forked portion 34 projecting upwardly therefrom whichforms a support for a shaft 35, the;ends of which form a trunnionsupport for a member 36.

The member 36has a tubular arm 37 projecting forwardly therefrom whichin turn has a drilling head 38 adjustably mounted on its forward end.The member 36 is split I for a portion of its length and is clamped .onthe tubular arm 37 by any suitable means herein shownas nuts and bolts.A hearing member 39 within the tubular arm 37 forms a bearing member fora shaft 40 which extends the entire length of said tubular arm fordriving the drilling mechanism 16 from the motor 15.

The drilling head 38 is trunnioned on a member 42 on the forward end ofthe tubular arm 37 so as to be angularly movable with respect to saidarm. A strap 43 is provided to hold said drilling head 38 in variousdesirable positions with respect to said tubular arm said strap beingattached to said drilling head and tubular arm by nuts and bolts 44.

The drilling mechanism 16 and drilling head 38 is similar to thatdescribed in a prior application Serial Number 268,733., filed by meApril 9, 1928, so will not herein be described in detail. A gear 45 isjournaled in the drilling head 38 on its hub and has a threaded shaft 46passing through the hub of said gear and feathered therein so said shaftmay move through said gear for substantially its entire length. Threadedjaws 47 are provided on the drilling head 38 to engage said threadedshaft to move said shaft through the gear 45 as said gear is rotatingsaid shaft. The jaws 47 are engaged or disengaged with the threadedshaft 46 by means of a hand operated disc 48. Suitable frictional meanscontrolled by a hand wheel 49 are also provided to stop feeding ortranslational movement of the threaded shaft 46 on overload of thedrilling mechanism. A tubular member 50 extends rearwardly of thedrilling head 16 to form a supporting means for the threaded shaft 46.

The threaded shaft 46 has a squared end 51 adaptable to fit in a socketof a cutter and drill holding member 52 for driving said cutter anddrill holding member. A twist drill 53 of an ordinary fish tail type isheld in the forward portion of the cutter and drill holding member 52,and a plurality of cutters 54, 54, project angularly forwardly therefromfor drilling a hole in a mine wall of a larger diameter than can beobtained from the ordinary fish tail type of twist drill as is fullydescribed in my prior application Serial Number 296,917, hereinbeforementioned.

The spur gear 45 is driven by means of a spur gear 55 keyed on the endof the shaft 40. Provision is made for driving the gear 45 from the gear55 at the several permissible angles of said gears relative to eachother, by arranging the pivotal axis of the head 38 and member 42 so itwill coincide with the pitch circles of both gears 45 and and providingsaid gears with relatively deep teeth ehamfered at their edges toprevent binding between said gears.

The shaft 40 has a bevel pinion '58 keyed to its lower end which isdriven by a bevel gear 59 freely mounted on the shaft The bevel gear 59is driven by a bevel pinion 60 on a vertical shaft 61 journaled withinthe turntable 33. A worm gear 62 is freely mounted on the vertical shaft61 and has driving connection therewith by means of a suitable clutchmeans (not shown) of the ordinary type. The worm gear 62 is driven by aworm 63 on a motor shaft 64 of the motor 15.

A means is provided to support the tubular arm 37 in various angularpositions with respect to the motor 15. Said means comprise a pluralityof adjustable supports 66 pivoted to opposite sides of the drilling head38 at one end and mounted in brackets 67 on opposite sides of the motor15 at their opposite end. Said. adjustable supports may be of any typewell known to the art, but herein comprises a threaded tube 68 having ahandwheel' 69 at the central portion thereof and having rods 70 and 71threaded therein at opposite ends thereof. The rod 71 is pivotallymounted to the drilling head 88 while the bottom rod 70 is pivotallymounted to a member 72 which is fixed in the bracket 67 so that rotationof the hand wheel 69 in one direction or the other will raise or lowerthe tubular arm 37 and the drilling head 38 so that holes may'be drilledat various elevations with respect to the mine bottom.

A power bracket 74 is provided to drive thetruck 10 from the forward endof the motor shaft 64. Said power bracket is of a usual type and has aworm 75 journaled therein which drives a worm gear 76 keyed on atransverse shaft 77 journaled therein. The worm 75 is driven from theforward end of the motor shaft 64 by means of a coupling shaft 78. Thecoupling shaft 78 has an irregular upturned end 7 9 at one end thereofwhich fits in an irregular socket 80 keyed on the forward end of themotor, shaft 64.

The opposite portion of said shaft is squared and passes throughasquared hole in the worm 75, and is slidable therein so the irregularend 79 may be removed from the socket 80 when it is desired todisconnect the worm 75 from the motor 15. A member 81 is adaptable tobear against the forward end of the coupling shaft 78 when said shaft isconnected to the motor 15. A sprocket 82 on the outer end of thetransverse shaft 7 7 has driving connection with the forward truck axles13 through a sprocket 83 and drive chain 84. The forward and rearwardtruck axles 13 are connected together by means of a sprocket 85, drivechain 86 and sprocket 87.

Means are provided to hold the truck 10 in a stationary position when ahole is being drilled in the mine wall.

Said means herein comprise a plurality of clamps 88 which depend fromthe forward and rearward portions of the truck frame 11 and are clampedon each mine rail. The clamps 88 may be of any type well known to theart and as herein shown comprise menibers 89 extending from the toportion of the truck frame 11 to one side 0 the mine rail, and havingmembers 90 which may clamp on the opposite side of said mine rail. Alink 91 passes around the members 89 and 90 to hold said members incontact with the mine rail. A wedge shaped member 92 passes through aslot in the top portion of the member 89 and is interposed between saidmember and the truck frame 11 to raise the members 89 and 90 above themine rail when it is desired to travel about the mine or to allow saidmembers to engage the mine rail to hold the truck 10 in a stationaryposition on the mine rail.

It may now be seen that I have provided a drilling .mechanism mounted ona portable truck for drilling holes in a mine wall and that since mydrilling mechanism is both vertically and angularly adjustable withrespect to said truck and is mounted on a turntable movable transverselyof said truck, that holes may be drilled in various positions in a mineface or in a ribat right angles thereto at various angular positionswith respect to said rib or face without movement of the truck. Thisprovides a means whereby shot holes may be drilled in the mine face andholes for supporting mine timbers may be drilled in the mine ribs atright angles thereto while the truck for supporting the drillingmechanism is clamped to the mine rails in a stationary position.

Figures 3, 4, 5 and 6 show the device of my invention drilling holes ofa large diameter for accommodating mine timbers in the ribs or walls ofa mine entry. These figures show the ribs as being uneven and depressedfrornor overhanging the mine rails as are usual conditions in coalmines. The truck 10 is brought to drilling position on the mine railsand clamped in said position by means of the clamps 88, 88, thusaffording a steady support for the drilling mechanism 16. Where the riboverhangs the mine rail as is shown in Figure 5, the turntable 14 movedto the opposite side of the mine truck from said overhanging rib andfixed in a stationary position on said truck by means of the cap screws21 and the nuts and bolts 2 1 and a hole is drilled in said overhangingmine wall in the usual manner. Figure 6 shows a rib depressed from themine wall. In this instance the turntable 14 is moved to the side of themine truck 10 adjacent the depressed rib and held in a stationaryposition on said mine truck and a hole is drilled in said depressed ribin the usual manner.

While I have shown and described one form of my invention, I do not wishto be limited to the precise details of construction or arrangement ofparts herein shown and described, except as specifically limited in theappended claims.

I claim as my invention:

1. In a drilling mechanism, a truck having wheels and axles thereon formovement about a mine on mine rails, a turntable on said truck movabletransversely thereof, clamping means for holding said turntable in astationary position on said truck, a drilling arm supported on saidturntable for movement about a vertical or horizontal axis, and adrilling head supported on the outer end of said drilling arm andangularl-y movable with respect thereto.

2. In a drilling mechanism, a truck having wheels and axles thereon formovement about a mine on mine rails, a turntable on said truck movabletransversely thereof, a motor on said turntable, a drilling armsupported on said motor at one end thereof, a drilling head having adrill supported therein, said drilling head being supported on the outerend of said drilling arm for angular movement with respect thereto, anddrive means for rotating and feeding said drill driven from said motor.

3. In a drilling mechanism, a truck having wheels and axles thereon formovement about a mine on mine rails, a truck frame, a plate movabletransversely of said truck frame, a circular plate supported on saidfirst mentioned plate for rotatable movement thereon, a motor on saidcircular plate and rotatably movable therewith, a drilling mechanismadjustably supported on said motor and driven from said motor in allpermissible positions of adjustment with respect thereto, and guidemeans for guiding said first mentioned plate as it is moved transverselyof said truck frame, said guide means also serving as a clamping meansfor holding said plate in a stationary position on said truck.

4. In a drilling mechanism, a truck having Wheels and axles thereon formovement about a mine on mine rails, a truck frame, a plate movabletransversely of said truck frame, a circular plate supportedonsaid firstmentioned plate for rotatable mevement thereon, a motor on said circularplate and rotatably movable therewith, a drilling mechanism adju'stablysupported on said motor and driven from said motor in all permissiblepositions of adjustment with respect thereto, and guide means on saidfirst mentioned plate for guiding said circular plate so saidcircular'plate may rotatably be moved on said first mentioned plate,said guide means also serving as a clamping means for holding saidcircular plate in a stationary position on said first mentioned plate.

5. In a drilling mechanism, a truck having Wheels and axles thereon formovement about a mine on mine rails, a truck frame, a plate movabletransversely of said truck frame, a circular plate supported on saidfirst mentioned plate for rotatable movement thereon, a motor on saidcircular plate and rotatably movable therewith, a drilling mechanismadjustably supported on said motor and driven from said motor in allpermissible positions of adjustment with respect thereto, guide meansfor guiding said first mentioned plate as it is moved transversely. ofsaid truck frame, and guide means on said first mentioned plate forguiding said circular plate for rotatable movement on said firstmentioned plate, said guide means also serving as a clamping means forholding said circular plate in a stationary position on said firstmentioned plate.

6. In a drilling mechanism, a truck having Wheels and axles thereon formovement about a mine on mine rails, a turntable on said truck, a motorsupported thereon, a drilling mechanism adjustably supported on saidmotor for drilling a hole in a mine Wall at various angles andelevations With respect thereto and means for supporting said turntableand motor for movement transversely of said truck, said supporting meansalso supporting said turntable and motor in an overhanging position onone or the other sides of said truck.

7. In a drilling mechanism, a truck having Wheels and axles thereon formovement about a mine on mine rails, a turntable on said truck, a motorsupported thereon, a drilling mechanism adjustably supported on saidmotor for drilling a hole in a mine wall at various angles andelevations With respect thereto, and means for supporting said turntableand motor for movement transversely of said truck, said supporting meansalso supporting said turntable and motor in an overhanging position onone or the other sides of said truck, comprising guide means for guidingsaid turntable as it is moved transversely of said truck said guidemeans also serving asv a clamping means for holding said turntable in astationary position on said truck including an overhanging position withrespect to said truck.

8. In a drilling mechanism, a truck having Wheels and axles thereon formovement about a mine on the mine rails, a turntable on said truck, adrilling head adjustably supported on said turntable for drilling a holein a mine 'Wall at various angles and elevations with respect thereto,and means for supporting said turntable for movement transversely ofsaid truck, said supporting means also supporting said turntable in anoverhanging position on one or the other sides of said truck.

9. In a drilling mechanism, a truck having Wheels and axles thereon formovement about a mine on the mine rails, a turntable on said truck, adrilling head adjustably'supported on said turntable for drilling a holein a mine Wall at various angles and elevations with respect thereto,and means for supporting said truntable for movement transversely ofsaid truck, said supporting means also supporting said turntable inanoverhanging position on one or the other sides of said truckcomprising guide means for guiding said turntable as it is movedtransversely of said truck, said guide means also serving as a clampingmeans for holding said turntable in a stationary position-on said truckincluding an overhanging position with respect to said truck.

Signed at Chicago, in the county of Cook and State of Illinois, this26th. day of Decemher, A. D. 1928.

FREDERICK W. VODOZ.

